English translation for "直接顶板"

immediate roof
nether roof
nether stratum
roof stone

Related Translations:

顶板阶梯:  roof step

顶板撑:  crown stay

外顶板:  roof sheet

顶板裂缝:  roof fissure

平巷顶板:  roof of drift

货架顶板:  deck board

岩层顶板:  top of bed

人工顶板:  artificial roof

弱顶板:  poor roof

稳定顶板:  firm top

Similar Words：

"直接调整" English translation, "直接调制" English translation, "直接调制方式" English translation, "直接调制技术" English translation, "直接顶" English translation, "直接顶初次垮落" English translation, "直接定位" English translation, "直接定位法" English translation, "直接定位方式" English translation, "直接定位装卡" English translation